Why error cards can be worth so much The market value of an error card depends mainly on three factors: Rarity the fewer copies that exist, the more valuable the card tends to be
But the most interesting thing about Grass is the great selection of disruption attackers available
As with our discussion on high power level, this is a case-by-case sort of thing as well
You can find this card in almost any condition, with heavily played (HP) starting around six dollars, moderately played (MP) moving up to about ten dollars, lightly played (LP) jumping up to the $15+ range, capped off by near-mint (NM) copies, which command as high as $17
The second reason why this card tops the charts is that it is unique among all other lands, and because of that, is a necessity in Vintage decks like Dredge, which wants cards in the graveyard early in the match